71381488 has 20 divisors (see below), whose sum is σ = 138511720. Its totient is φ = 35636544.

The previous prime is 71381467. The next prime is 71381503. The reversal of 71381488 is 88418317.

It is a self number, because there is not a number n which added to its sum of digits gives 71381488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8806 + ... + 14842.

It is an arithmetic number, because the mean of its divisors is an integer number (6925586).

Almost surely, 2^71381488 is an apocalyptic number.

It is an amenable number.

71381488 is a deficient number, since it is larger than the sum of its proper divisors (67130232).

71381488 is a wasteful number, since it uses less digits than its factorization.

71381488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784 (or 6778 counting only the distinct ones).

The product of its digits is 43008, while the sum is 40.

The square root of 71381488 is about 8448.7565949079. The cubic root of 71381488 is about 414.8220807952.

The spelling of 71381488 in words is "seventy-one million, three hundred eighty-one thousand, four hundred eighty-eight".